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368 Glossary
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network device
A network device is a hardware entity characterized by its use as a communications
component within a network.
network DN
A number supplied by the ISDN network service provider for ISDN terminal equipment.
network interface card (NIC)
This card is installed inside a computer so the computer can be physically connected to a
network device such as the Business Communications Manager server.
On hold
A setting that controls what external callers hear: music, tones, or silence, when you place
the call on hold. Program On hold under Feature settings in System programming.
overflow
A setting in Routing Service that allows users to decide which path an outgoing call takes
if all the lines used in a selected route are in use.
packet
A packet is a unit of data that is routed between an origin and a destination. Each packet is
separately numbered and includes the Internet address of the destination.
Packet and datagram are similar in meaning. A protocol similar to TCP, the User
Datagram Protocol (UDP) uses the term datagram.
page
A feature you can use to make announcements over the Business Communications
Manager system using the telephone speakers and/or external speakers.
Page Time out
A setting that controls how long a Page Announcement can last. Assign the Page Time out
under Feature settings in System programming.
Page zone
An area in the office that receives internal page announcements that other areas of the
office do not hear. Assign telephones to page zones under Capabilities in System DNs
programming.
Parallel port
A port that transfers data through multiple wires. Parallel ports normally use a 25-pin
interface that transmits and receives data using a separate data line for every bit.
Peripheral Component Interconnect (PCI) Slot
Socket on the Business Communications Manager main printed-circuit board that
connects to the Business Communications Manager cards.